A new general global array calibration method

In this paper, a new method is proposed for calibrating a planar array of general geometry with respect to errors in location, phase and gain, even when all errors are present simultaneously (global calibration). The method requires the use of three pilot sources, which operate one at a time and from at least two different azimuth angles. Since the sources need not operate simultaneously, one only pilot source may be used from three different directions. The method assumes that the electrical errors (phase and gain errors) are not direction de-pendent. Simulation results that support the performance of the proposed method are also presented.